Daniel had
35 as many pens as Hilda. After Daniel gave away 57 pens, he had 61 less pens than Hilda. How many pens did Hilda have?
| |
Daniel |
Hilda |
| Before |
3 u |
5 u |
| Change |
- 57 |
|
| After |
3 u - 57 |
5 u |
Hilda had 61 more pens than Daniel in the end. So, if Daniel had another 61 pens, he would have the same number of pens as Hilda.
5 u = 3 u - 57 + 61
5 u - 3 u = 61 - 57
2 u = 4
1 u = 4 ÷ 2 = 2
Number of pens that Hilda had at first
= 5 u
= 5 x 2
= 10
Answer: 10
